Federal investigators are looking into the cause of a fire at a Georgia Ports Authority terminal that sent smoke billowing into the sky over Savannah this weekend.

Local investigators are working with the Georgia State Fire Marshal's office and the federal Bureau of Alcohol, Tobacco, and Firearms.

Savannah Fire Spokesman Mark Keller says the ATF gets involved in fire investigations when interstate commerce may be affected.

"And because of the scope and the value of the property that was involved, they have authorization for jurisdiction in situations like that," Keller says.

Georgia Ports Authority officials say the Port of Savannah resumed normal operations Monday.

The Authority’s Chief Operating Officer Griff Lynch says no one was in the warehouse when the fire started and he doesn’t expect any disruption of port business. But he says the investigation and cleanup will take time.

The total cost of the damage is not yet known. Lynch says the warehouse space and crude rubber that were destroyed by the blaze are worth around $9 million combined.

The fire destroyed about 100,000 square feet of warehouse and 1,800 tons of crude rubber.

Tags: Georgia Ports Authority, ATF, Sarah McCammon, Mark Keller, #Savannahfire, Georgia State Fire Marshal